]Experience with Chinese products teaches that they can make functional stuff if they must, but they don't give a fuck and cut every imaginable corner
I'm not to sure of the first part. They have designed a few functional jet fighters, high speed missiles (and other items) that show some potential but in too few numbers to make a difference in a real war. Also the engine reliability and the avionics are horrible and in fact, they're having to buy jet engines from Russia. The same with their counterfeit chip production, they kinda sorta work but not to the standards that we expect.
The 2nd part of your statement however should be the quote of the day! I keep that fact in mind ANYTIME that I consider buying ANYTHING made in China.
Chinese products both military and civilian still have a LONG ways to go both in actual effectiveness and in reliability and durability before they are a true military or economic threat to the West. Uncontrolled rockets crashing on our heads, global pollution from burning E-scrap in the open, shipping toxic food stuffs to the west, and highly contaminated rivers flowing into the worlds oceans not withstanding.